Pequod HYDRA 8.1 SUPERSUB User manual
Pequod Acoustics Srl.
Via del Madonnone 25, Florence, Italy
www.pequodacoustics.com
HYDRA 8.1 SUPERSUB
Super horn-loaded subwoofer
User guide
Pequod Acoustics Srl.
Via del Madonnone 25, Florence, Italy
www.pequodacoustics.com
Index
1 Technical Specications
2 Unpacking and Checking
3 Cables and Set-up
4 Installation and System Design
5 Accessories
6 Maintenance and Surface Protection
7 Warranty
8 Authenticity
HYDRA 8.1 SUPERSUB
Super horn-loaded subwoofer
Pequod Acoustics Srl.
Via del Madonnone 25, Florence, Italy
www.pequodacoustics.com
1 Technical Specications
Super horn loaded subwoofer with circular
section development, characterized by extre-
me sensitivity, dynamics and emission power,
made with an incredibly rigid and light structu-
re in durable composite materials. Unlike all
other alternatives currently available, this low
frequency loudspeaker has been realized wi-
thout technical and dimensional compromi-
ses, being fully developed both in terms of
length and radiating surface. Thus it achie-
ves maximum acoustic performance combi-
ned with an elegant design and personality,
always keeping dynamics and control front
and center. Nearly scratch proof surfaces and
resistance to atmospheric agents combined
with extremely high eciency and world class
sensitivity allow the Hydra to perform favo-
rably compared with any product from the
main competing brands. Hydra 8.1 guarante-
es the perfect loading of low frequencies in
sensitivity, depth, control and SPL expressed
by the usage of few watts. The most common
subwoofers on the market (wooden box type)
are horn loaded speakers with several internal
turns, non-optimized sections and reduced
length, leading to lower sensitivity, reections
that create distortions and ripples, and une-
ven loading. Therefore they need corrections
by DSP with consequent mechanical stress
caused by the excursion of the transducer,
which creates more distortions while using
the enormous amount of energy needed by
the amplier to obtain SPL. Hydra 8.1 uses
a single hi-quality transducer of 18“(460mm).
The structure is rigid, very light (considering
the whole weight and the rate dB/Kg) The
scenic impact is extraordinary and absolu-
tely exclusive and unique on the professional
sound market. The Hydra 7.1 ,vertical version,
has a straight rst part of the horn. Hydra 7.1
(vertical) and Hydra 8.1 (folded) have similar
acoustic performance.
TYPE
FREQUENCY
RESPONSE
TOTAL
SENSITIVITY
NOMINAL
IMPEDANCE
POWER
HANDLING
MANAGE
RECOMMENDED
AMPLIFIER
DISPERSION
CONSTRUCTION
MATERIALS
FINISH
CONNECTORS
DIMENSIONS
WEIGHT
Super horn-loaded subwoofer
28 Hz - 140 Hz
110 dB 1W/1m
8 Ohm or 4 Ohm (depending on the
version)
1700 W nominal, 3400 W power conti-
nuous program
2 Ch amplier to a couple of Hydra+D-
SP to match to satellite. High-pass lter
@25Hz, 24 dB/oct. But ;Low-pass lter
@100-120Hz, 24 dB/oct. LR
Full Fatt Audio FFA 10000 (Hydra 4 ohm
version)
Specialized for frontal, reduced posterior
Fiber-reinforced composite, stainless
steel
all ral color and texture on order
1x Neutrik NL4 or custom preference
(W) 1420 mm (H) 2760 mm (D) 2100mm
(W) 55 inch (H) 108 inch (D) 82 inch
80 Kg (176,37 lb)
2760 mm 108 inch )
USER GUIDE
2100 mm (82 inch ) 1420 mm (55 inch )
2: Unboxing
The Hydra, like every other Pequod product, is
built with high standards of control and quality.
At the end of the production process and be-
fore packaging, each system is tested: acousti-
cally measured and recorded in our company
database. For each Hydra serial number, we
have the related test les recorded in the archi-
ve. Before being packed in its box we complete
an inspection of surfaces and structures. Units
are packed into wooden crates or heavy card-
board boxes with internal foam padding before
shipping.
Extraction from box:
The Hydra weighs 80 Kg (176,37 lb) each, and it’s
being shipped contained inside suitable woo-
den packaging box. Its extraction from the box
is achievable by two operators, at least. When
shipped disassembled, follow the instructions at
the end of chapter 4 ( Assembly + anchoring ) ,
about its assembly on site. Keep the packaging
for further storage or transportation, unless units
are to be permanently installed.
Pequod Acoustics Srl.
Via del Madonnone 25, Florence, Italy
www.pequodacoustics.com
USER GUIDE
Pequod Acoustics Srl.
Via del Madonnone 25, Florence, Italy
www.pequodacoustics.com
3 Wiring and Settings
Hydra has an input made with a female NL4 connector. Through a dedicated cable and terminated
with 2 male NL4Fc connectors it is connected directly to the output of the power amplier. The
connectors are standard NL4 (+ 1 / -1 connected + 2 / -2 empty) or water proof on request.
In case of custom realization by the installer of the connection cables, we recommend specifying
installation-grade Low Smoke Zero Halogen (LSZH) cables for permanent installations. The cables
should use Oxygen Free Copper (OFC) of grade C11000 or above.
For distances of over 15 meters between Hydra and ampliers we recommend increasing the
section of the cable poles to 4 sq mm, to avoid excessive emission level losses. For lengths of less
than 15 m, you can use 2-pole cables, each with a section of 2.5 sq. mm.
Connection diagrams:
A) 1x Hydra (see g.below): Cable between Hydra and amp (not supplied): 2-pole cable (section
2.5 sq mm minimum per pole up to cable length of 15 m, in addition we recommend switching to
4 sq mm for pole), terminated with Nl4Fc male connector (+ 1 / -1 connected and corresponding
to +1 red and -1 black on the amplier, + 2 / -2 empty) to connect to the Hydra input, which has an
NL4fc female connector, standard or WP on request.
Amplier + DSP
USER GUIDE
+1 Red
-1 Black
on ampli exit
(
(
NL4FC ( +1 -1 ) NL4FC ( +1 -1 )
2p
Pequod Acoustics Srl.
Via del Madonnone 25, Florence, Italy
www.pequodacoustics.com
B) 2x Hydra (in parallel) (see g. Below):
Cable between subwoofer and amp made with
Y connection of 2 cables of 2 poles each, con-
nected in parallel with each other and then con-
nected to a 2p cable connected to amplier.
Terminals made with male NL4 connectors (+ 1
/ -1 connected + 2 / -2 empty), terminal towards
the amplier made with male NL4 connector (+
1 / -1 connected to +1 red and -1 black on the
amplier and + 2 / -2 empty). Sections of po-
les: 2.5 sq mm minimum section per pole up to
cable length of 15 m, in addition we recommend
switching to 4 sq mm per pole.
Parallel Connection
2p
2p
2p
A
T
B
DSP general settings:
DSP general settings:
Band pass:
High-pass lter @25Hz, 24 dB/oct But.
Low pass lter @100-120Hz, 24 dB/oct LR.
Gain and Time Alignment : it depends on Satel-
lite utilized
USER GUIDE
NL4FC ( +1 -1 )
NL4FC ( +1 -1 )
NL4FC ( +1 -1 )
+1 Red
-1 Black
on ampli exit
+1 A
+1 B
into +1 T
-1 A
-1 B
into -1 T
(
((
(
(
(
+1
+1
+1
-1
-1
-1
A
T
B
Pequod Acoustics Srl.
Via del Madonnone 25, Florence, Italy
www.pequodacoustics.com
Hydra + Polyphemus
side position ( Left )
Hydra + Polyphemus
side position ( Right )
4 Installation and system design
The Hydra can typically be used as a very high
quality system to sonorize listening areas, such
as a dance oor or for an audience of a live con-
cert. In all cases it is necessary to use suitable
satellites (Polyphemus, Swave, Kona available
from the catalog Pequod) to have a full range
system.Hydra represents the optimal choice as
a subwoofer to be combined with the Polyphe-
mus (SWave), to have a full range horn loaded
system, of high quality and global sensitivity.
The gure shows the typical combination, with
Polyphemus on the same support surface (side
position)
USER GUIDE
Pequod Acoustics Srl.
Via del Madonnone 25, Florence, Italy
www.pequodacoustics.com
In Indoor systems:
In Indoor systems we recommend placing the
Hydra against the wall (wall position) or in a cor-
ner position, to avoid harmful (for the purposes
of emission regularity) reections of acoustic
waves and increase the overall performance of
the system.
Corner Position
Wall Position
USER GUIDE
Pequod Acoustics Srl.
Via del Madonnone 25, Florence, Italy
www.pequodacoustics.com
Assembly + anchoring:
As regards the assembly and possible ancho-
ring of Hydra during installation, the straight
part must be hinged at the bottom and, rotated
up to the vertical by the operator (see picture),
put the bolts metric thread M10 on the ange,
as shown in the gure, and tighten in cross or-
der (opposite diameters)
If necessary, there is the possibility of ancho-
ring the 4 feet of Hydra to the ground, by means
of screws, metric thread M12, screwed betwe-
en the oor and threaded insert M12, placed in
each foot of the product.
USER GUIDE
Grower
1
2
3
Pequod Acoustics Srl.
Via del Madonnone 25, Florence, Italy
www.pequodacoustics.com
USER GUIDE
Stainless steel base
Cod. BSCE
5: Accessories
In the Pequod catalog there are some accesso-
ries to be used with Hydra.
Cod. BAG01HT: Protective PVC Bag sized for
the volume at the top of the Hydra, waterproof
soft nish to protect from scratches and wea-
ther.
Cod. BAG01HM: Protective PVC Bag sized for
the mouth of the horn system, waterproof soft
nish to protect from scratches and weather.
Water proof bag
Cod. BAG01HT
Water proof bag
Cod. BAG01HM
Pequod Acoustics Srl.
Via del Madonnone 25, Florence, Italy
www.pequodacoustics.com
6: Maintenance and Surface Protection
All Pequod units are built from a unique high
quality composite material which is inert to at-
mospheric agents and requires minimal regular
maintenance, just a simple cleaning of the sur-
faces with a soft cloth dampened with alcohol.
For best practice in long term care of the com-
posite components, and to obtain or restore
a truly professional level of surface nish, we
recommend using the 3M “Perfect ItTM” line of
Gelcoat cleaners and protective waxes (above
right).
Follow the instructions provided to ensure the
best possible nish for your Pequod composite
speaker bodies and accessories.
Many installations require Stainless Steel sup-
port structures or armatures to complete moun-
ting and assembly of dierent Pequod units. For
these components, we recommend cleaning
with 3MTM Stainless Steel Cleaner and Polish (ri-
ght).
USER GUIDE
Pequod Acoustics Srl.
Via del Madonnone 25, Florence, Italy
www.pequodacoustics.com
7: Warranty
Pequod Acoustics oers a guarantee to the origi-
nal owner (person or company who purchased the
product brand new) of each new Pequod product
(provided it was purchased directly from Pequod or
through a Pequod Acoustics Authorised Dealer/ Di-
stributor) that it is free of defects in materials and
workmanship and that each product was tested in
the factory to meet or exceed all specications de-
clared. Each model has a test le recorded in our
database, related to its serial number.
The period of limited warranty is three (3) years from
the date of delivery to the original purchaser (as
shown on the original invoice or sales receipt; a copy
may be required as proof of warranty dates)
Pequod Acoustics will repair or replace (at its discre-
tion) all defective parts at no charge for labor or ma-
terials; subject to following provisions:
Pequod Acoustics shall take no responsibility for re-
pair or replacement under this warranty if:
a) The damaged product has been subject to misu-
se, accident, neglect or failure to comply with normal
maintenance procedures
b) There are improper alterations or unauthorized
parts or repairs.
c) The serial number has been altered, defaced or
removed and the original owner won’t be able to give
information related to our Anti-counterfeit authenti-
cation system (see below, section 8)
Pequod Acoustics will remedy any defect, regardless
of the reason for failure (except as excluded above)
by repair or replacement. Pequod Acoustics will ship
the product within a reasonable time after receipt of
the defective product at a Pequod Acoustics Autho-
rised Service Centre.
How to obtain service under warranty:
If a Pequod Acoustics product requires service, the
original owner must contact the Pequod Acoustics
dealer who supplied the product, to receive our Re-
turn Authorisation Code (RA code), and instructions
on how to return the product to the Pequod Authori-
sed Service Centre, or to Pequod Acoustics.
The original owner must give information about:
- Problems with the product
- Serial number
- Original invoice or sales receipt
- Anti-counterfeit system (see section 8)
After receiving the RA code the owner can pack the
unit in the original factory packaging if possible. Ple-
ase include a note describing the problem packed
together with the product. Do not send it separately.
All products being returned to the factory or service
center for repairs must be shipped prepaid. Ensure
safe transportation of your unit to the authorized ser-
vice center
Pequod Acoustics (or an Authorised Service Centre)
will initiate corrective repairs upon receipt of the re-
turned product, in order to complete the repairs and
ship back the product within a reasonable amount
of time.
If the repairs made by Pequod or a Pequod Authori-
sed Service Centre are not satisfactory to the owner,
they are instructed to give written notice to Pequod.
The original owner is not entitled to recover from
Pequod any incidental damages resulting from any
defect in the Pequod product. This includes any da-
mage to another product or products resulting from
such a defect.
The warranty is not extended by the length of time
which the owner is not engaged in active use of the
product. Repairs and replacement parts provided
pursuant to the warranty will be covered only by the
non-expired portion of the warranty.
USER GUIDE
Pequod Acoustics Srl.
Via del Madonnone 25, Florence, Italy
www.pequodacoustics.com
USER GUIDE
8: Authentication and Anti Counterfeiting Me-
asures
Each product by Pequod Acoustics is carefully
hand made using high quality components that
are, by themselves, dicult to replicate. But we
also protect our products using special marks
on the inside and outside, which are unique and
serve to authenticate original Pequod products.
Thus, each individual product has a special
mark, placed in a unique position. For each pro-
duct (each serial number) we keep a record of
the exact position where we placed this mark.
When warranty claims are made, or other reque-
sts that require authentication of an individual
Pequod product, we will ask the owner to pro-
vide a description of the identifying marker as
further proof of originality.
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